الفهرس | Only 14 pages are availabe for public view |
Abstract The green chemistry or eco-friendly finishing one of the most important considerations of the environmental requirements and related legislations as important properties in the development of textile industries. Our research is a trail to get a special ecofriendly bioactive performance of the cellulosic textile products via microencapsulation technique. Microencapsulation an interesting actual and probable future trend for finishing, characterized by a long lasting, slow continuous release and transfer of products to the human skin is filling microcapsules with active agents(e.g. fragrances, cosmetics, vitamins, and drugs and dyes are encapsulated in the biopolymers e.g. Chitosan) and fixing them on the surface of the fabric. As a trail to get an eco-friendly finished product using: Unconventional effectively (anti-microbial – anti-odour…) ecofriendly product (agriculture or marine algae and plants) as/or leaves flowers pastes of plants & extract their effective alkaloids or dyes via microencapsulation technique & other cores. 1- Collection of some agriculture plants and marine algae and grass taking into consideration the collection period. The Pelargonium hortorum selected as an agriculture plant, Colpomonia sinousa, Ulva fasciata as algae. Helophelia stapilecea as a sea grass. 2- Extract their active ingredients then identify the active compounds included in their extractions. 3- Study the bioactive performance of the extractions (antibacterial- anti-inflammatory…..). 4- Encapsulation of active extracted ingredients using ecofriendly shell materials, the microcapsules shape and size detected by TEM microscope and optical microscope) and scanning microscope was used to evaluate microcapsules on the surface of the fibers. 5- Apply the encapsulated products on cellulosic based textile then the bioactive performance of treated samples evaluated before and after washing cycles according to antibacterial and anti-inflammatory stander methods. 6- Some samples post treated by 2% citric acid and others by 1% binder (Printfix binder MTBEG liq.)then the bioactive performance of these samples evaluated before and after washing cycles according to antibacterial and antiinflammatory stander methods. 7- The main results of this study mentioned below:- a) The microcapsules were successfully prepared using ethanolic extract of marine organisms and pelargonium as a core material, sodium alginate and mybro gum as shell materials. b) The microencapsulated extract of different core materials recorded a high antibacterial and antiinflammatory activity but the pelargonium extract gets the highest results. c) The samples post treated by citric or binder get higher results than those treated by microcapsules only and those post treated by citric recorded results higher than post treated by binder (Printfix binder MTBEG liq.).d) The durability against washing cycles were examined, the samples post treated with citric or binder (Printfix binder MTBEG liq.) were durable to washing cycle than the samples treated with microcapsules only. e) The physico-mechanical properties of the samples were evaluated before and after treatment. Tensile strength, roughness properties of the samples enhanced after treatment, but the stiffness was slightly increased after treatment. 8- The optimum treatment condition applied on wound dressing which recorded marked antibacterial activity after 4, 8 and 24 hours. 9- Whiteness and color strength of samples evaluated before and after different treatment conditions and both affected slightly by treatment. 10-Four designs of clothing as well as their patterns were performed, using treated fabrics then printed by different printing designs as end use of our work. |